Also known as:false testimonies · perjured testimony
Written by attorneys · grounded in primary & secondary sources — see below
Testimony given under oath or affirmation that the witness knows to be untrue. The concept requires knowing falsity and applies when a witness or lawyer participates in presenting such statements in a proceeding.
Sources & Authorities
How it applies
Common Examples
2
Counsel Refuses Perjured Alibi
Francesca Fowler tells her defense lawyer she wants to present an alibi witness who will falsely claim Fowler was out of state during the charged robbery. The lawyer refuses to call the witness and warns Fowler that presenting the testimony would require disclosure to the court. The lawyer's refusal prevents any violation of ethical duties and preserves the integrity of the trial record.
Witness Testimony Contradicted by Records
Felix Franco testifies at trial that he inspected safety equipment the week before an accident. Later evidence shows the inspections were four months overdue. The contradiction establishes that Franco gave false testimony on a material fact, allowing impeachment and affecting the credibility determination.
Put it into practice
Test Yourself
10
Practice Questions5
· 1 primary source
Select any source to read its text and confirm it supports the definition.
Cases
Study Supplements
Dictionaries
United States v. Gaudin515 U.S. 506, 509 (1995)
Common questions
Frequently Asked
4
Does a lawyer commit misconduct by preparing a witness to give false testimony?+
Yes. A lawyer violates professional conduct rules by counseling or assisting a witness to testify falsely. The rule applies during deposition preparation and trial advocacy. Conduct that substitutes minimizing language contradicting the witness's own prior documentation supports a finding of discipline.
Supporting sources
Is a subordinate lawyer excused from discipline when following a partner's instruction to give false testimony?+
No. A subordinate lawyer has an independent duty to comply with the rules and cannot escape responsibility by claiming a supervisor directed the conduct. Knowing false statements under oath remain sanctionable even when a partner instructs the lawyer to rely on a backdated file copy.
Supporting sources
Does false testimony bar a finding of good moral character in naturalization proceedings?+
Yes. A person who has given false testimony for the purpose of obtaining benefits under the Act cannot be found to be a person of good moral character. The bar applies even to statements that are immaterial to the ultimate decision.
Supporting sources
Must a lawyer correct prior testimony once the lawyer learns it was false?+
Yes. A lawyer shall not knowingly make a false statement of fact to a tribunal or fail to correct a false statement of material fact previously made. The duty continues until the proceeding concludes and requires disclosure of subsequently discovered inaccuracies.
Supporting sources
Civil ProcedureMotions · Posttrial motions, including motions for relief from judgment and for new trialUBEIntermediate